November 2010

Product Information

ECI 119Absolute Rotary Encoder

2 Product Information ECI 119 11/2010

ECI 119Rotary encoders without integral bearing for integration in motors

Hollow through shaft • ¬ 50 mm

Inductive scanning principle•

A = Bearingk = Required mating dimensionsm = Measuring point for operating temperatureÀ = Cylinder head screw ISO 4762-M3 with ISO 7092 (3x) washer. Tightening torque 0.9±0.05 NmÁ = SW 2.0 (6x). Evenly tighten crosswise with increasing tightening torque; fi nal tightening torque

0.5 ±0.05 Nm = Shaft detent: For function, see Mounting/Removalà = 15-pin plug connector Ä = Compensation of mounting tolerances and thermal expansion, no dynamic motionÅ = Protection against contact as per EN 60 529Æ = Required up to max. ¬ 92 mmÇ = Required mounting frame for output cable with cable clamp (accessory). Bending radius of

connecting wires min. R3 Direction of shaft rotation for output signals as per the interface description

Product Information ECI 119 11/2010 3

Absolute

Singleturn

ECI 119

Absolute position values EnDat 2.1 EnDat 2.1

Order designation* EnDat 01 EnDat 21

Positions per revolution 524 288 (19 bits)

Elec. permissible speed/Deviations1)

† 3 750 min–1/± 128 LSB† 6 000 min–1/± 512 LSB

† 6 000 min–1 (for continuous position value)

Calculation time tcal † 8 µs

Incremental signals » 1 VPP –

Line counts 32 –

Cutoff frequency –3 dB ‡ 6 kHz typical –

System accuracy ± 90“

Power supply 5 V ± 5 %

Power consumption (maximum)

† 0.85 W

Current consumption (typical) 135 mA (without load)

Electrical connection PCB connector, JAE, 15-pin

Shaft Hollow through shaft D = 50 mm

Mech. permissible speed n † 6 000 min–1

Moment of inertia of rotor 63 · 10–6 kgm2

Permissible axial motion of

measured shaft

± 0.3 mm

Vibration 55 to 2 000 HzShock 6 ms

† 300 m/s2 (EN 60 068-2-6)† 1 000 m/s2 (EN 60 068-2-27)

Max. operating temperature 115 °C

Min. operating temperature –20 °C

Protection EN 60 529 IP 20 when mounted

Weight Approx. 0.14 kg

* Please select when ordering1) Velocity-dependent deviation between the absolute and incremental signals

0.05 ACx T1

T2

0.05 A

b

AX1, X2

4 Product Information ECI 119 11/2010

Mounting Information

The ECI 119 is an encoder without integral bearing. This means that mounting and operating conditions infl uence the functional reserves of the encoder. It is essential to ensure that the specifi ed mating dimensions and tolerances are maintained in all operating conditions.

The following in particular must be kept in mind:

Axial runout of fl ange mounting surface• Radial runout of the motor shaft • Maintaining the scanning gap (a), while • taking into account the superimposition of motions, such as:

– The length relation of the motor shaft and housing under temperature infl uence (T1; T2; Þ1; Þ2) depending on the position of the fi xed bearing (b)

– The bearing play (Cx) – Nondynamic shaft offsets due to load

(X1) – The effect of engaging motor brakes

(X2)

The application analysis must result in values within specifi cation under all operating conditions (above all under max. load and at minimum and maximum operating temperature for the measured

max. runout of the motor shaft• max. runout of the motor shaft with • respect to the mounting surfacemax. scanning gap (a)• minimum scanning gap (a)•

and under consideration of the signal amplitude (by inspecting the scanning gap at room temperature) by means of ATS software.

Furthermore, the general mechanical and electrical information in the current “Position Encoders for Servo Drives” brochure must be kept in mind!

Scanning gap a = 0.65±0.3

Product Information ECI 119 11/2010 5

Mounting/Removal

Preparing Installation

Align

Place the rotary encoder fl at with the fl ange side on a clean, even surface (e.g. a granite plate). The shaft detent (arrow) must be disabled, i.e. the encoder shaft must move freely within the encoder housing.

Lock

Press the encoder housing (stator) against the supporting surface and tighten the locking ring by turning it clockwise until it is fi nger tight.

Ready for mounting

The rated scanning gap is set now. The encoder shaft is locked and the connector is blocked.

Check

Ensure the correct position of the locking ring. The ring ends must lie between the encoder shaft and the clamping ring (no overhang permitted).

6 Product Information ECI 119 11/2010

Slide on the encoder

Slide the encoder into the mating shaft; do not jam it. Apply pressure only on the encoder shaft (clamping ring).

Screw on

Fasten the encoder housing with three screws and washers.

M3 screws; head • ¬ † 5.5 mmWashers as per ISO 7092• Tightening torque 0.9 ± 0.05 Nm (with • torque wrench)

If required, fasten the clamp of the output cable. Appropriate tools are available from HEIDENHAIN.

Mounting/Removing the Rotary Encoder

Clamp the shaft

Evenly tighten crosswise the clamping screws (SW 2.0, 6x60°) with increasing tightening torque. Do not exert additional axial pressure; fi nal tightening torque = 0.5 ± 0.05 Nm.

Release the lock

Turn the locking ring counterclockwise up to the stop (snap-in point). The locking ring is now in its operating position: the connector is accessible.

Removing the Rotary Encoder

The encoder is removed in the opposite sequence with a loosened shaft lock. Remount only if the encoder and mounting parts are in faultless condition.

Product Information ECI 119 11/2010 7

Connect the testing cable

(JAE 15-pin plug connector; ensure proper polarization). Check the mounting quality by means of the ATS software.

Checking the Mounting

Examination with ATS software

(At room temperature, UP = 5 V)Start the ATS software.

Rotary encoder inspection is supported as of ATS version 2.2.00. The software version can be called over "Help" in the menu bar.

Establish the connection: Select “Connect encoder” and enter the ID number.Then select “Connect.”

8 Product Information ECI 119 11/2010

Select ExI check under Mounting.

Press “Next.”

Check “scanning gap.”

Important note

A signal amplitude deviating from 100 % limits permissible axial motion for operation. 5 % deviation means a reduction of 0.03 mm of the permissible axial motion for operation.

“Scanning gap” check is fi nished.Then select “Mounting quality.”To do so, rotate the motor slowly.

Product Information ECI 119 11/2010 9

Check the mounting quality.

Important note

The mounting quality must lie within 95% to 100%. A mounting quality of < 95% indicates an inadequate mounting situation. If necessary, check the mating dimensions and repeat the mounting procedure.

Note

The measurement results (amplitude, mounting quality, etc.) can be called over the log fi le. The log fi le is in the ATS program folder and has to be called using the Explorer.

The detailed results of all measurements are saved in the log fi le through the logbook. It is possible to enter comments.

10 Product Information ECI 119 11/2010

Inspection complete. Select “End” or “Restart.” Remove the test cable.

Mount the connecting cable.

Active warnings and alarms can be displayed over “Status.”

Product Information ECI 119 11/2010 11

Accessories

Adjusting and testing package

HEIDENHAIN offers an adjusting and testing package for diagnosis and adjustment of HEIDENHAIN encoders with absolute interface.

IK 215• PC expansion boardATS• adjusting and testing software

IK 215

Encoder input EnDat 2.1 or EnDat 2.2 (absolute value with/without • incremental signals)FANUC serial interface• Mitsubishi High Speed Serial Interface• SSI•

Interface PCI bus, Rev. 2.1

System requirements Operating system: Windows XP (Vista upon request)• Approx. 20 MB free space on the hard disk•

Signal subdivision

for incremental signalsUp to 65 536-fold

Dimensions 100 mm x 190 mm

ATS

Languages Choice between English or German

Features Position display• Connection dialog• Diagnostics• Mounting wizard for ECI/EQI• Additional functions (if supported by the encoder)• Memory contents•

Encoder cable

For IK 215, incl. 3 adapter connectors, 12-pin and 3 adapter connectors, 15-pinID 621 742-01

15-pin adapter connector

Three connectors for replacementID 528 694-02

Mounting aid

For JAE connectorID 592 818-01

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Electrical Connection

Cables inside the motor housing

With one connector

15-pin (male), with cable clampLength 0.3 m

EPG (16 x AWG30/7)Cable ¬ 4.5 mm

640 067-N3

Pin layout

15-pin PCB connector

Power supply Incremental signals1) Absolute position values (EnDat)

13 11 14 12 1 2 3 4 7 8 9 10

UP Sensor

UP

0 V Sensor

0 VA+ A– B+ B– DATA DATA CLOCK CLOCK

Brown/Green

Blue White/Green

White Green/Black

Yellow/Black

Blue/Black

Red/Black Gray Pink Violet Yellow

UP = power supplySensor: The sensor line is connected internally with the corresponding power line.Vacant pins or wires must not be used!1) Only with ordering designation EnDat01

For more information

Brochure: • Position Encoders for Servo Drives

644 913 · 00 · A · 01 · 11/2010 · PDF